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Micro-propodial
 
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From the album:

Late Jurassic plesiosaurs from the Volga

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Photo Information for Micro-propodial

Taken with realme realme 6

  • 5.6 mm
  • 9999/1000000
  • f f/1.8
  • ISO 147
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pachy-pleuro-whatnot-odon

Posted

Wow! That's a peculiarly small propodial! Must be a juvenile...? But exceptional to find remains from an individual so young and small. Normally this would disintegrate rather than be preserved. Never seen anything this size before...! :default_faint:

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Thanks! Probably. Moscow plesiosaurs are not particularly large either. 161369601274339-big.jpg

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pachy-pleuro-whatnot-odon

Posted (edited)

You're right. Actually, note that I think of it, the Seeleyosaurus they have at the Museum am Löwentor in Stuttgart is not all the big either (even if it does seem just ever so slightly bigger)... Probably I just wrongly estimated the size based in the big propodial fragment, rather than how it looks in your hand!

 

Seeleyosaurus.jpg

 

Seeleyosaurus is a microcleidid, however, which is a family restricted to the Early Jurassic. Any idea what family/families the diminutive Russian plesiosaur species belong to?

Edited by pachy-pleuro-whatnot-odon
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Everything from the Upper Jurassic goes to Colymbosaurus or Colymbosaurinae indet.

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pachy-pleuro-whatnot-odon

Posted

5 hours ago, RuMert said:

Everything from the Upper Jurassic goes to Colymbosaurus or Colymbosaurinae indet.

 

Talk about waste bucket...! Based on Colymbosaurus I didn't think colymbosaurines would get that small.

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fifbrindacier

Posted

That's a nice fossil, congratulations Rumert.

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On 7/24/2021 at 10:04 PM, pachy-pleuro-whatnot-odon said:

Based on Colymbosaurus I didn't think colymbosaurines would get that small.

They got that covered:) 

"At least two colymbosaurine taxa existed in the Middle Russian Sea during the Volgian. Large Colymbosaurus inhabited the Middle Russian Sea during the Panderi Chron when the connections with other basins were intense. Since the isolation of the Middle Russian Sea from the Tethys during the Virgatus Nikitini chrones, exclusively small Colymbosaurus-like colymbosaurines occur in the Middle Russian Sea"

from here

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